- Many shares have had a real price effect due to the fact that they have jointly agreed on Discord to buy this share, and then the price has been pushed up properly, says Jan Leopoldson, chamber prosecutor at the Swedish Environmental Crime Agency.

During the autumn, he has worked with people from the Swedish Financial Supervisory Authority and several large marketplaces and banks, to map those who are suspected of having carried out a systematic impact on share prices for at least 18 companies.

The investigation began with a tip via Twitter, and in November an attack on several addresses in southern Sweden could be made.

Prosecutor: "Is optimistic"

During the raid, computers and telephones were seized, which according to Jan Leopoldson was important for the state of evidence.

But if and when charges can be brought, he does not want to go into.

- I hope that it will be a good investigation and I am optimistic that the state of evidence can be so good that prosecution can be brought.

So far, only a few people in Sweden have been convicted of manipulating share prices with the help of social media.

Jan Leopoldson believes that there will be more as the authorities, marketplaces and banks become better at cooperating.

- There are 2.5 million Swedes who have shares, and it is very important to know that behind price increases and praise that you should buy a share, there are often people behind the scenes who pull the strings and have already bought the share and want to get up the.

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"It makes me feel bad.

Trying to lure small savers into such shares ", says the share profile Mohammed Salih.

Photo: Håkan Claesson / SVT